Type-writing machine.



. UNITED singes PATENT onirica.

CHARLES A. THISTLETHWAITE, OF ILION, NEW YORK, ASSIGNOR TO WYOKOFF, SEAMANS t BENEDICT, ILION,` NEW YORK, CORPORATION OF NEW YORK.

TYPE-WRITIN G MACHINE.

To all whom it 4may concern:

Beit known' that I, CHARLES-A. THrsTLE-THWAITE, a citizen of the United States, and a resident of Ilion, in the county of Herkimer and State of New York, have invented certain-new and'useful Improvements in Type-Writing Machines, of whichv the following is a specification.

My invention relates to typewriting, machines and more particularly to anti-friction roller separators which in the present instance are used for the antifriction rollers which support the carriage.

. Q In the drawings, Figure 1 s howslagn end elevation-of the top portion of a typewriting machine-embodying my invention. Fig. 2 is anenlarged detail sideelevation of my improved anti-friction roller separator with the rollers in place therein. Fig. 3 is a side view of the same, 'the parts being disposed at right angles lto the position shown in Fig. 2. Fig. 4 is a detail side view of one of the anti-friction roller separator plates. Fig. 5 is a side view of the saine taken at right angles to the position shown in Fig. 4. Fig. 6 is an enlarged fragmentary view of the separator with the rollersmounted therein, the parts appearing' as they would when viewed from above in Fig. 1.

The top plate 1 of the machine is supported on cor ner posts 2 and supports upwardly extending lugs 3, l

cylindrical platen 8 and is formed with rails 9 and 10.

Each of the fixedguide rails 5 and 6 has a V-shaped bearing .groove l1 and each of the ra-ils 9 and 10 on the carriage likewise 'has a V-shaped bearing groove 12. The bearing grooves in the fixed rails and in the car- .riage rails coperate with crossed anti-friction rollers 13, 14, the axes of the rollers 14 being at vright angles or substantially at right anglesto the axes of the rollers 13 so that the rollers 13 take the thrust of the carriage in one direction and the' rollers 14 receive the thrust of the carriage in another direction. roller separator is formed of two similarplates each designated as a whole by the reference numeral 15 and one of which is shown in detail in Figs. 4 and5.l Each of these plates is preferably made from a blank of sheet metal of uniform thickness and width throughout its length; Each blank is twisted at 16I at two points ,in

the length thereof so Ithat the plane '-'of each end por' Specification of Letters Patent. Appunti@ sied July 9. V1907. serial No. 382,943.

The anti-friction e Patented Nov. 5, 19o?.

the plate and is coincident or lsubstantially coincident with an edge of the central portion 18 as shown in Figl- 4. The plates are `brought together' in the manner in-v dicat'edin Figs. 2, 3 and 6 so the twisted portions .16

thereof cross or overlap each other in the manner indi- I cated in Fig. 6. l

It will be observed that the central portions 18 of thetwol plates, or those portions which. are between the tw'ists'l, are parallel 'and are at right angles to the ends 17 which are likewise maintained' in parallelism' andare spaced apart. The distance between the plates' 15 at the centralportions 18 thereof and at' the ends 17 is the same. The anti-friction rollers 14 are carried by the .plates l5 between lthe twists 16 and are maintained in position between the parallel central portions (18 of the plates by pivots 1-9 which are in the nature of'shouldered rivets and extend through the rollers and are riveted at their ends to the plates 15 to connect theniftoge'ther. The .rollers 13 are situated between the parallel end portions 17 of the plates'and are connected thereto' by pivots 2O which extend atV right angles tothe pivots 19 and are also in the nature l of shouldered rivets which connect the -plates together at their ends. Thus it will be seen that 'the pivots or .shouldered rivets 19 and 20 for 'the crossed anti-friction rollers 4also constitute means for connecting, the two 'the anti-friction roller separator of my 'invention is simple in construction, cheap to manufacture and is efficient in use comprisingV but few parts and that nov milling' or expensive and laborious work is required to manufacture the separatorst While I have referred herein to the use of anti-friction rollers it should be understood that this term is not used in a restricted sense but is intendedto apply to anti-friction balls as well. as rollers of the character shown. i

Various changes may bel made without departing from the spirit and scope of my invention.

.' 5; What I claim as new and desire to secure by Letters' Patent, is:-

1, An anti-friction roller separator comprising two plates, each plate being twisted so that the plane of ,one

portion of each plate is substantially at right angles to the plane o f another portion thereof, and anti-friction Irollers between said plates. A l

2. An anti-friction .roller separator comprising two plates, each-plate beingv twisted-so that the plane of one =poll-tionV of each plate is substantially -at right angles 515 fa'xiother portion of its length'-, 's'aiii and parallel at salti-portions" tllereoi` .'vyhlchgare at right angles to each other, and anti-'friction rollers between-'said theplane o f @other portion thereof, anti-'friction rollers between saidrplates, and pivots f or said rollers, said pivots extending between and-limiting s'ad plates. A

a. Ap anti-friqtion .ro1ler 'separator comprising two plates, each plateheingf twiste .so that thefplaneof 'one that of another portie ls'upstantiallyat right anglestoQ plane of thejplatefat plates at the parts thereof "vshlch"are p'arallel.

mates, eah plate bemg-cwistedft two poiats in; its 'length' is substantially at right anglesto the planeotthe plate at another portion of itslength, said plates crossing "at the so that/the planeofthe plateatthekent'rai portion thereof isssubstantiaul at the ends thjeosaldplatescrssng airthe points of the twists-'therein and being separated and parallelfat the .g i j center andends thereof, crossedanti-friction rollers` between said plates at the parts thereof4 'which are parallel, 'andv pivots for said rollersgsaid pivotsheing in the lor'n d .pivots for said rulings; eer 5 "tain of said piyotsextendin alt''jxbstaritially, right angles to. others and correctingthe-saidplates.l

" 4. An ant-fritlon roller sep'arator"-eornprising'j wo plates,. each plateheing' twisted attto'polnts-lnits length. that the plane. of the plate altone port nl .its fie'ngtli is".l

plates :'b'engi separated tudihally and centrally ofthe separator -v 7. An antiffrietion' roller separator comprising two sheet 4 0v gxnetai plates each-'platefheng-twistedzat two points ln the'v vlength thereof, so that' 'the 'endsfof eaehfplate are in one plane and ,the pianeof the 'centralportionis at substan`= tial-ly rightanglesto the plane ofnthe'ends, "said plates crossing. atthe paints of the twists..theren ahd anti-fric! '4'5 tionfrollersbetweensaid plates; -v

tlieplats wheneombined being-1in.parallel-planes and the central portions ofthe plates 4'l'eil'xg 'in parllelmplanes' at crossed 'antl-frtion rollers ioeatetl-'betweens'aid"pltes'at.

substantiallyright; angles to the plan both sides,I 'of the twists therein-'ndcrossod pvotsffor3saldf 5). An /antiffrictlon roller-separator-einprisin twcsheel:

metalplfates each twisted so that the glane of. 'onepo1 tlon thereof /is atsnbstantlallyrlght angles' tothe plane of all.

other p'ort'on and substantiallycoinident 'with iinedge o t said o ther portionv, cro ssed rollersbet-Ween sadplates, entimeans i or securing said fplates tt'iget-hler,v 4.theiy construction .6 5:

and arrangement being 'suc h tirata liinefjeatexidlixig longi'f will passee'ntraliy' through the' axes-of vall therollers. ,Signedat-Ilion, in th county of Herklmelyandstate of New York, this' fiftnaay or July-L D. 1907.

8.' Ananti-friction ro'llel` separatorconprising twosheet metaljplates e eh plate being-twistedv attwo A points in the .1' length thereof, so that the .ends` of leach 'plate are in oneplane and the plane 'of ,the central portio'nis at-suhstan- 50 'ti'a'lly right angles to the .'pl a 1 1e. of-j.tlie. e n ds, Said plates f 

